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10-21-2011, 03:14 PM | #33 | ||||||
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Keep going Rich....I love these old pictures...
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"Much care is bestowed to make it what the Sportsman needs-a good gun"-Charles Parker |
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10-21-2011, 07:25 PM | #34 | ||||||
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That isn't, by chance, Jim Tweto's suoer cub in that picture?
This thread started of looking for Parker steam engine info, but seems to have morphed into an Off Topic thread. The moderator can move it to OT if he deems fit. Hope none of the PP (Protocol Police) are too upset. I have a lot of pictures but I'll be damned if I can access them since getting all the old stuff moved to this new computer. I have a lot more in the old format, remember when we went to the drug store to pic them up? My old traction engine was a Peerless, but not unlike Case of that era. What the guy may have meant when he said the steam was used twice, was possibly in reference to the biggest of the Case engines that were tandem compound engines, where the steam exhausted from the high pressure cylinder into a larger, low pressure cylinder, then the steam would further expand, apply force on that piston. Large marine steam plants were multi cylinder engines where the steam went through many expansions as it passed from HP (smallest) to IP (sometimes 2 intermediate cylinders) finally into the LP, being the largest. The power of steam comes from it's expansion as it rapidly leaves the boiler, thru the cylinders. The old train wrecks could blow the whole side of a town away, if the water, under 150-250 PSI is sudden;ly allowed to reach 0 psi. What occupied a few hundred cubic feet, contained in a boiler at pressure, could become several thousand cubic feet if released to the atmosphere. I only ran 160-180 pis in my steamboat boiler, but when the safety valve was opened, as a matter of procedure, the steam cloud up the escape pipe would go a few hundred feet into the air. That single cylinder horizontal engine coupled to the dynamo is likely an oil engine (not quite a diesel) an had what was known as "hot tube" ignition, started by heated the tube with a torch, or oil flame. The tube was kept hot after the engine was running. It is likely (I sent the picture to an old engine friend. He's old, and loves old engines, having about 100) It's likely very valuable. Here's a picture or two of an engine I passed onto an older friend, with the promise it comes back to me when he dies (hopefully before me, and I still have enough to buy it back from his wife) It was built pre civil war, probably 1845-1855, and may have been the oldest I ever had. It was probably the only 'small' engine I truely loved. |
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10-21-2011, 07:54 PM | #35 | ||||||
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Edgar, What would a small steam engine like the one pictured be used for? A boat perhaps?
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"Much care is bestowed to make it what the Sportsman needs-a good gun"-Charles Parker |
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10-21-2011, 09:37 PM | #36 | ||||||
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Superheated water released to atmospheric pressure; instant potential energy to kinetic. Read about the "Sultana" and other riverboat and raiiroad disasters of the 19th and early 20th centuries. We had a serious explosion of a traction engine boiler here at the Medina County fair a few years ago.
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10-21-2011, 11:55 PM | #37 | ||||||
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That is pretty Edgar. Looks like it cleaned up very nicely. What a jewel. Hope you can get it back someday. That's my PA-12. There's a real treasure laying in the bushes beside that stationery engine - a pile of 100+ pcs of narrow gauge rail that has never been used. The RR club here in Fairbanks would kill for that pile! Wish I could get it to them somehow.
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10-22-2011, 03:00 PM | #38 | ||||||
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Here's a few pics of the engines on a floating bucket line dredge in Flat, Alaska. Took these on my July 4 trip there this summer. This place is one of the very best places in Alaska to see incredible "rust". This dredge was shut down in 1962 with the idea of leaving it easy to get going again. The large engine is complete and could likely be gotten going in a few hours. I think the smaller engine drives a compressor used to air start the larger engine. This is one of the best preserved dredges in Alaska. The best preserved unit is 3 miles upriver from this one and, having been in operation until just a few years ago, is ready to go with the turn of a single key.
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The Following 3 Users Say Thank You to Richard Flanders For Your Post: |
10-22-2011, 07:27 PM | #39 | ||||||
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To give an example of the sizes of antique machinery at the 'other' end of the spectrum, here's an 1875 Edward S Clark steam launch engine made in Boston. This engine would have comfortably pushed a launch of 25 to 30 feet, and swing a prop around 16". When you consider the detail that gunsmiths of the same period were required to achieve, this is crude by comparison, but considered by steam nuts, not unlike myself, to be a real find. It's about 2' feet tall and one of the few pieces of my steam stuff my wife lets me keep indoors, occupying a window seat in the den. I took this about 10:30 last night hence the lousy lighting.
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Fantastic thread fellows-- |
10-22-2011, 08:00 PM | #40 | ||||||
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Fantastic thread fellows--
IMO- this has been the most interesting thread, and with a series of great photos with details about something than is not 100% a Parker shotgun. I think I am on safe ground when I say that the majority of the PGCA membership loves mechanical devices of all types, their history.
Rich- you are 100% right about the square cut (or punched) holes in the treads and stress- a circle or arc distributes stress- segue to early LC Smiths for an example- first series Syracuse guns had a rectangular with 90% corners lug that mated into the receiver slot- later they radiused the front corners to relieve stress-- Old timers trick in welding up a crack or fracture-- from each end of the crack- move about 1/4" back and drill a small pilot hole through the metal- skip and back-step the weld, and weld up the holes last-plus proper pre-heat and post-weld heat wrap to slow down the air cooling-- I think we all owe these PGCA brothers a big stand up round of either: (a) applause, or better yet (2) drinks of their choice for this great thread--and it might lead into a future article for PP- Parker & Snow vises, Parker steam engines-- etc!! |
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